Shared subtrees [LWN.net]

Shared subtrees

Posted Nov 10, 2005 14:58 UTC (Thu) by im14u2c (subscriber, #5246)
In reply to: Shared subtrees by nix
Parent article: Shared subtrees

How about "any directory the user owns, or has write access to but does not have the sticky bit set"? Quick refresher on the sticky bit from the chmod(1) manpage:

STICKY DIRECTORIES
       When  the sticky bit is set on a directory, files in that directory may
       be unlinked or renamed only by root or their owner.  Without the sticky
       bit,  anyone able to write to the directory can delete or rename files.
       The sticky bit is commonly found on directories, such as /tmp, that are
       world-writable.

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Shared subtrees

Posted Nov 11, 2005 11:05 UTC (Fri) by nix (subscriber, #2304) [Link]

Yes; that would mean that only world-writable directories (which strike me as a really bad idea) would be `problematic'.

(And for those of us giving each user their own /tmp, well, we can turn the sticky bit off and fix up the permissions so that only that user can write to it :) )

Shared subtrees

Posted Nov 12, 2005 0:06 UTC (Sat) by elanthis (subscriber, #6227) [Link]

If the rule is "any directory the user *owns*" then world-writable directories wouldn't be a big problem.